The genetics of resilience and its relationships with egg production traits and antibody traits in chickens

Table 8 Estimates of genetic parameters of resilience indicators based on expected individual production for Brown

Trait	Period	\({{\varvec{\upsigma}}}_{\mathbf{a}}^{2}\) (SE)	\({{\varvec{\upsigma}}}_{\mathbf{m}}^{2}\) (SE)	\({{\varvec{\upsigma}}}_{\mathbf{e}}^{2}\) (SE)	\({{\varvec{\upsigma}}}_{\mathbf{p}}^{2}\) (SE)	\({\mathbf{h}}^{2}\) (SE)	\({\mathbf{m}}^{2}\) (SE)	GCV
ln(variance)	25–83	0.11 (0.01)	0.02 (0.005)	1.09 (0.01)	1.22 (0.01)	0.09 (0.01)	0.02 (0.004)	0.33
ln(variance)	83-end	0.05 (0.01)	0.01 (0.01)	1.70 (0.02)	1.76 (0.02)	0.03 (0.01)	0.01 (0.003)	0.22
Skewness	25–83	0.11 (0.01)	0.02 (0.005)	1.26 (0.01)	1.36 (0.01)	0.08 (0.01)	0.01 (0.004)	0.17
Skewness	83-end	0.02 (0.003)	0.004 (0.002)	0.46 (0.005)	0.48 (0.004)	0.04 (0.01)	0.01 (0.004)	0.31
Autocorrelation	25–83	0.003 (0.001)	0.001 (0.0002)	0.07 (0.001)	0.07 (0.001)	0.05 (0.008)	0.01 (0.003)	0.25
Autocorrelation	83-end	0.003 (0.001)	NS	0.11 (0.001)	0.11 (0.001)	0.03 (0.01)	NS	0.55

Estimates of variance components (\({\upsigma }^{2}\)), heritability (\({{\text{h}}}^{2}\)), maternal environmental effect (\({{\text{m}}}^{2}\)), and genetic coefficient of variation (GCV) of the three resilience indicators ln(variance), skewness, and autocorrelation based on expected individual production for the selected life periods with 1-week intervals with standard errors (SE) for Brown
NS: maternal environmental effect not significantly different from zero

ISSN: 1297-9686